I've the same problem with my Linksys wusb54g adapter and the kernel 2.6.22-14-server.
[ 399.730000] ieee80211_init: failed to initialize WME (err=-17) [ 399.760000] iwlwifi_rc80211_simple: Unknown symbol iwlwifi_ieee80211_rate_control_unregister [ 399.760000] iwlwifi_rc80211_simple: Unknown symbol iwlwifi_sta_info_put [ 399.760000] iwlwifi_rc80211_simple: Unknown symbol iwlwifi_sta_info_get [ 399.770000] iwlwifi_rc80211_simple: Unknown symbol iwlwifi_ieee80211_rate_control_register [ 399.790000] wmaster0: Selected rate control algorithm 'simple' [ 399.880000] usbcore: registered new interface driver rt2500usb
So i'm using the legacy driver rt2570 now, and it works fine for me.
I've the same problem with my Linksys wusb54g adapter and the kernel 2.6.22-14-server.
[ 399.730000] ieee80211_init: failed to initialize WME (err=-17) rc80211_ simple: Unknown symbol iwlwifi_ ieee80211_ rate_control_ unregister rc80211_ simple: Unknown symbol iwlwifi_ sta_info_ put rc80211_ simple: Unknown symbol iwlwifi_ sta_info_ get rc80211_ simple: Unknown symbol iwlwifi_ ieee80211_ rate_control_ register
[ 399.760000] iwlwifi_
[ 399.760000] iwlwifi_
[ 399.760000] iwlwifi_
[ 399.770000] iwlwifi_
[ 399.790000] wmaster0: Selected rate control algorithm 'simple'
[ 399.880000] usbcore: registered new interface driver rt2500usb
So i'm using the legacy driver rt2570 now, and it works fine for me.